<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>评论列表</title>
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css">
  <style>
    .badge {
      float: right;
      margin-right: 5px;
    }
    .my-page{
      margin: 0 5px;
    }
    .all-page-content{
      margin-left: 5px;
    }
  </style>
</head>

<body style="padding: 15px;">

  <!-- 评论面板 -->
  <div class="panel panel-primary">
    <div class="panel-heading">
      <h3 class="panel-title">发表评论</h3>
    </div>
    <form class="panel-body cmt-form">
      <div>评论人：</div>
      <input type="text" class="form-control" name="username" autocomplete="off" />
      <div>评论内容：</div>
      <textarea class="form-control" name="content"></textarea>
      <button type="submit" class="btn btn-primary submit">发表评论</button>
    </form>
  </div>


  <!-- 评论列表 -->
  <ul class="list-group">
    <!-- <li class="list-group-item">
       <span>评论内容</span>
       <span class="badge del" style="cursor:pointer; background-color: lightgray;">删除</span> 
       <span class="badge" style="background-color: #F0AD4E;">评论时间：xxx</span>
       <span class="badge" style="background-color: #5BC0DE;">评论人：xxx</span>
    </li> -->
  </ul>

  <!-- 分页器 -->
  <nav >
    <ul class="pagination">
      <li>
        <button class="last">
          <span>&laquo;</span>
        </button>
      </li>
      <li class="my-page">
        <span class="page-show"></span>
      </li>
      <li>
        <button class="next">
          <span>&raquo;</span>
        </button>
      </li>
      <li class="all-page-content">
        <span>共计:<span class="all-page"></span>页</span>
      </li>
    </ul>
  </nav>
  <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
  <script src="./lib/form-serialize.js"></script>
  <script>
    let currentpage = 1
   // 渲染页面
   async function getlist(currentpage){
    const res = await axios.get('http://123.57.109.30:3006/api/cmtlist',{params:{page:currentpage}})
    console.log(res);
    const data = res.data.data
    const htmlStr = data.map((item)=>{
      return `
      <li class="list-group-item">
       <span>${item.content}</span>
       <span class="badge del" style="cursor:pointer; background-color: lightgray;" data-id=${item.id}>删除</span> 
       <span class="badge" style="background-color: #F0AD4E;">评论时间:${item.time}</span>
       <span class="badge" style="background-color: #5BC0DE;">评论人:${item.username}</span>
    </li>
      `
    }).join('') 
    document.querySelector('.list-group').innerHTML = htmlStr
    document.querySelector('.all-page').innerHTML = res.data.allPage
    document.querySelector('.page-show').innerHTML = currentpage

   }
   getlist(currentpage)


  //  添加
   function addcmt(){
    const cmtForm = document.querySelector('.cmt-form')
    cmtForm.addEventListener('submit', async function (e) {
      e.preventDefault()
      const data = serialize(cmtForm,{hash:true,empty:true})
      const p  = await axios.post('http://123.57.109.30:3006/api/addcmt',{...data})
      getlist(currentpage)
      cmtForm.reset()
    })
  }
  addcmt()

  // 删除
  function delcmt(){
    document.querySelector('.list-group').addEventListener('click',async function (e) {
      if(e.target.classList.contains('del')){
        const id = e.target.dataset.id
        const p = await axios.get('http://123.57.109.30:3006/api/delcmt',{params:{id}})
        getlist(currentpage)
      }
    })
  }
  delcmt()

  //  后退
   document.querySelector('.last').addEventListener('click', function () {
    if(currentpage > 1 ){
      currentpage--
    } else {
      return
    }
    getlist(currentpage)

   })
  // 前进
  document.querySelector('.next').addEventListener('click', function () {
      currentpage++
      getlist(currentpage)
   })
   
  </script>
</body>

</html>